Intraobserver and interobserver reproducibility in linear measurements on axial images obtained by cone-beam computed tomography
Identifieur interne : 000179 ( Pmc/Checkpoint ); précédent : 000178; suivant : 000180Intraobserver and interobserver reproducibility in linear measurements on axial images obtained by cone-beam computed tomography
Auteurs : Nathália Cristine Da Silva [Brésil] ; Maurício Barriviera [Brésil] ; José Luiz Cintra Junqueira [Brésil] ; Francine Kühl Panzarella [Brésil] ; Ricardo Raitz [Brésil]Source :
- Imaging Science in Dentistry [ 2233-7822 ] ; 2017.
Abstract
This study was performed to investigate the intra- and inter-observer variability in linear measurements with axial images obtained by PreXion (PreXion Inc., San Mateo, USA) and i-CAT (Imaging Sciences International, Xoran Technologies Inc., Hatfield, USA) CBCT scanners, with different voxel sizes.
A cylindrical object made from nylon with radiopaque markers (phantom) was scanned by i-CAT and PreXion 3D devices. For each axial image, measurements were taken twice in the horizontal (distance A-B) and vertical (distance C-D) directions, randomly, with a one-week interval between measurements, by four oral radiologists with five years or more experience in the use of these measuring tools.
All of the obtained linear measurements had lower values than those of the phantom. The statistical analysis showed high intra- and inter-observer reliability (
It can be concluded that both scanners are accurate, although the linear measurements are underestimations, with no significant differences between the evaluators.
Url:
DOI: 10.5624/isd.2017.47.1.11
PubMed: 28361024
PubMed Central: 5370249
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Intraobserver and interobserver reproducibility in linear measurements on axial images obtained by cone-beam computed tomography</title><author><name sortKey="Da Silva, Nathalia Cristine" sort="Da Silva, Nathalia Cristine" uniqKey="Da Silva N" first="Nathália Cristine" last="Da Silva">Nathália Cristine Da Silva</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Barriviera, Mauricio" sort="Barriviera, Mauricio" uniqKey="Barriviera M" first="Maurício" last="Barriviera">Maurício Barriviera</name><affiliation wicri:level="2"><nlm:aff id="A2">Department of Oral Radiology, College of Dentistry, Catholic University of Brasilia, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>Department of Oral Radiology, College of Dentistry, Catholic University of Brasilia, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Junqueira, Jose Luiz Cintra" sort="Junqueira, Jose Luiz Cintra" uniqKey="Junqueira J" first="José Luiz Cintra" last="Junqueira">José Luiz Cintra Junqueira</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Panzarella, Francine Kuhl" sort="Panzarella, Francine Kuhl" uniqKey="Panzarella F" first="Francine Kühl" last="Panzarella">Francine Kühl Panzarella</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Raitz, Ricardo" sort="Raitz, Ricardo" uniqKey="Raitz R" first="Ricardo" last="Raitz">Ricardo Raitz</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">28361024</idno><idno type="pmc">5370249</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5370249</idno><idno type="RBID">PMC:5370249</idno><idno type="doi">10.5624/isd.2017.47.1.11</idno><date when="2017">2017</date><idno type="wicri:Area/Pmc/Corpus">002D06</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002D06</idno><idno type="wicri:Area/Pmc/Curation">002D06</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002D06</idno><idno type="wicri:Area/Pmc/Checkpoint">000179</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000179</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Intraobserver and interobserver reproducibility in linear measurements on axial images obtained by cone-beam computed tomography</title><author><name sortKey="Da Silva, Nathalia Cristine" sort="Da Silva, Nathalia Cristine" uniqKey="Da Silva N" first="Nathália Cristine" last="Da Silva">Nathália Cristine Da Silva</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Barriviera, Mauricio" sort="Barriviera, Mauricio" uniqKey="Barriviera M" first="Maurício" last="Barriviera">Maurício Barriviera</name><affiliation wicri:level="2"><nlm:aff id="A2">Department of Oral Radiology, College of Dentistry, Catholic University of Brasilia, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>Department of Oral Radiology, College of Dentistry, Catholic University of Brasilia, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Junqueira, Jose Luiz Cintra" sort="Junqueira, Jose Luiz Cintra" uniqKey="Junqueira J" first="José Luiz Cintra" last="Junqueira">José Luiz Cintra Junqueira</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Panzarella, Francine Kuhl" sort="Panzarella, Francine Kuhl" uniqKey="Panzarella F" first="Francine Kühl" last="Panzarella">Francine Kühl Panzarella</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Raitz, Ricardo" sort="Raitz, Ricardo" uniqKey="Raitz R" first="Ricardo" last="Raitz">Ricardo Raitz</name><affiliation wicri:level="2"><nlm:aff id="A1">São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author></analytic><series><title level="j">Imaging Science in Dentistry</title><idno type="ISSN">2233-7822</idno><idno type="eISSN">2233-7830</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Purpose</title><p>This study was performed to investigate the intra- and inter-observer variability in linear measurements with axial images obtained by PreXion (PreXion Inc., San Mateo, USA) and i-CAT (Imaging Sciences International, Xoran Technologies Inc., Hatfield, USA) CBCT scanners, with different voxel sizes.</p></sec><sec><title>Materials and Methods</title><p>A cylindrical object made from nylon with radiopaque markers (phantom) was scanned by i-CAT and PreXion 3D devices. For each axial image, measurements were taken twice in the horizontal (distance A-B) and vertical (distance C-D) directions, randomly, with a one-week interval between measurements, by four oral radiologists with five years or more experience in the use of these measuring tools.</p></sec><sec><title>Results</title><p>All of the obtained linear measurements had lower values than those of the phantom. The statistical analysis showed high intra- and inter-observer reliability (<italic>p</italic>=0.297). Compared to the real measurements, the measurements obtained using the i-CAT device and PreXion tomography, on average, revealed absolute errors ranging from 0.22 to 0.59 mm and from 0.23 to 0.63 mm, respectively.</p></sec><sec><title>Conclusion</title><p>It can be concluded that both scanners are accurate, although the linear measurements are underestimations, with no significant differences between the evaluators.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Nikneshan, S" uniqKey="Nikneshan S">S Nikneshan</name></author><author><name sortKey="Aval, Sh" uniqKey="Aval S">SH Aval</name></author><author><name sortKey="Bakhshalian, N" uniqKey="Bakhshalian N">N Bakhshalian</name></author><author><name sortKey="Shahab, S" uniqKey="Shahab S">S Shahab</name></author><author><name sortKey="Mohammadpour, M" uniqKey="Mohammadpour M">M Mohammadpour</name></author><author><name sortKey="Sarikhani, S" uniqKey="Sarikhani S">S 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Imaging Sci Dent</journal-id><journal-id journal-id-type="iso-abbrev">Imaging Sci Dent</journal-id><journal-id journal-id-type="publisher-id">ISD</journal-id><journal-title-group><journal-title>Imaging Science in Dentistry</journal-title></journal-title-group><issn pub-type="ppub">2233-7822</issn><issn pub-type="epub">2233-7830</issn><publisher><publisher-name>Korean Academy of Oral and Maxillofacial Radiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">28361024</article-id><article-id pub-id-type="pmc">5370249</article-id><article-id pub-id-type="doi">10.5624/isd.2017.47.1.11</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Intraobserver and interobserver reproducibility in linear measurements on axial images obtained by cone-beam computed tomography</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>da Silva</surname><given-names>Nathália Cristine</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Barriviera</surname><given-names>Maurício</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Junqueira</surname><given-names>José Luiz Cintra</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Panzarella</surname><given-names>Francine Kühl</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Raitz</surname><given-names>Ricardo</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib></contrib-group><aff id="A1"><label>1</label>São Leopoldo Mandic Research Center, Department of Oral Radiology, College of Dentistry, São Paulo, SP, Brazil.</aff><aff id="A2"><label>2</label>Department of Oral Radiology, College of Dentistry, Catholic University of Brasilia, São Paulo, SP, Brazil.</aff><author-notes><corresp>Correspondence to: Prof. Ricardo Raitz. Rua Heitor Penteado, 1832, 101A, São Paulo, SP, Brazil, CEP 05438-300. Tel) 55-11-35675208, Fax) 55-11-35675208, <email>ricardoraitz@ig.com.br</email></corresp></author-notes><pub-date pub-type="ppub"><month>3</month><year>2017</year></pub-date><pub-date pub-type="epub"><day>21</day><month>3</month><year>2017</year></pub-date><volume>47</volume><issue>1</issue><fpage>11</fpage><lpage>15</lpage><history><date date-type="received"><day>23</day><month>5</month><year>2016</year></date><date date-type="rev-recd"><day>02</day><month>10</month><year>2016</year></date><date date-type="accepted"><day>31</day><month>10</month><year>2016</year></date></history><permissions><copyright-statement>Copyright © 2017 by Korean Academy of Oral and Maxillofacial Radiology</copyright-statement><copyright-year>2017</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec><title>Purpose</title><p>This study was performed to investigate the intra- and inter-observer variability in linear measurements with axial images obtained by PreXion (PreXion Inc., San Mateo, USA) and i-CAT (Imaging Sciences International, Xoran Technologies Inc., Hatfield, USA) CBCT scanners, with different voxel sizes.</p></sec><sec><title>Materials and Methods</title><p>A cylindrical object made from nylon with radiopaque markers (phantom) was scanned by i-CAT and PreXion 3D devices. For each axial image, measurements were taken twice in the horizontal (distance A-B) and vertical (distance C-D) directions, randomly, with a one-week interval between measurements, by four oral radiologists with five years or more experience in the use of these measuring tools.</p></sec><sec><title>Results</title><p>All of the obtained linear measurements had lower values than those of the phantom. The statistical analysis showed high intra- and inter-observer reliability (<italic>p</italic>=0.297). Compared to the real measurements, the measurements obtained using the i-CAT device and PreXion tomography, on average, revealed absolute errors ranging from 0.22 to 0.59 mm and from 0.23 to 0.63 mm, respectively.</p></sec><sec><title>Conclusion</title><p>It can be concluded that both scanners are accurate, although the linear measurements are underestimations, with no significant differences between the evaluators.</p></sec></abstract><kwd-group><kwd>Cone-Beam Computed Tomography</kwd><kwd>Dimensional Measurement Accuracy</kwd><kwd>Reproducibility of Results</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><title>The universal measuring machine.</title></caption><graphic xlink:href="isd-47-11-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><title>Phantom image with the coordinates A1, B1, C1, and D1.</title></caption><graphic xlink:href="isd-47-11-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><title>Identifying coordinates of the phantom.</title></caption><graphic xlink:href="isd-47-11-g003"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><title>The means standard deviations and absolute and relative errors (%) of the linear measurements (mm) of the cylindrical object, according to each examiner</title></caption><graphic xlink:href="isd-47-11-i001"></graphic><table-wrap-foot><fn><p><sup>*</sup>: Obtained by subtracting the measurements derived from the use of each scanner from those designated as the gold standard, <sup>**</sup>: Obtained by the ratio of the absolute errors and the gold standard measures</p></fn></table-wrap-foot></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><title>Agreement between the linear measurements obtained with the use of i-CAT and PreXion CBCT scanners and the real measurements (gold standard), according to each examiner</title></caption><graphic xlink:href="isd-47-11-i002"></graphic><table-wrap-foot><fn><p>ICC: intra-class correlation coefficient.</p></fn></table-wrap-foot></table-wrap></floats-group></pmc><affiliations><list><country><li>Brésil</li></country><region><li>État de São Paulo</li></region></list><tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Da Silva, Nathalia Cristine" sort="Da Silva, Nathalia Cristine" uniqKey="Da Silva N" first="Nathália Cristine" last="Da Silva">Nathália Cristine Da Silva</name></region><name sortKey="Barriviera, Mauricio" sort="Barriviera, Mauricio" uniqKey="Barriviera M" first="Maurício" last="Barriviera">Maurício Barriviera</name><name sortKey="Junqueira, Jose Luiz Cintra" sort="Junqueira, Jose Luiz Cintra" uniqKey="Junqueira J" first="José Luiz Cintra" last="Junqueira">José Luiz Cintra Junqueira</name><name sortKey="Panzarella, Francine Kuhl" sort="Panzarella, Francine Kuhl" uniqKey="Panzarella F" first="Francine Kühl" last="Panzarella">Francine Kühl Panzarella</name><name sortKey="Raitz, Ricardo" sort="Raitz, Ricardo" uniqKey="Raitz R" first="Ricardo" last="Raitz">Ricardo Raitz</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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